Home / 18,520,393,155.60-25,558,142,517.51-10,491,733,683.69

Finding the Fourth Proportional to 18,520,393,155.60, 25,558,142,517.51 and 10,491,733,683.69

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Solution

The fourth proportional to 18,520,393,155.60, 25,558,142,517.51 and 10,491,733,683.69 is: 14,478,592,462.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,520,393,155.60 : 25,558,142,517.51 = 10,491,733,683.69 : x
  2. Step 2: Convert to fraction form
    18,520,393,155.60/25,558,142,517.51 = 10,491,733,683.69/x
  3. Step 3: Cross multiply
    18,520,393,155.60x = 25,558,142,517.51 × 10,491,733,683.69
  4. Step 4: Simplify right side
    18,520,393,155.60x = 268,149,224,743,509,196,800
  5. Step 5: Solve for x
    x = 268,149,224,743,509,196,800/18,520,393,155.60
  6. Step 6: Final answer
    x = 14,478,592,462.41

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Double scale
Find fourth proportional to 18,520,393,156.60, 25,558,142,518.89 and 10,491,733,684.69
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.